#include <stdio.h>
#include <stdlib.h>

#define TAG 0
#define hx 0.1
#define hy 0.1
#define a 0
#define b 1
#define tay hx*hx/4
#define xsteps (b-a)/hx+1
#define ysteps (b-a)/hy+1
#define tsteps 65535
